All questions
AP Physics 1
5.5 Rotational Equilibrium and Newton’s First Law in Rotational Form
5.3 Torque
BeginnerMCQConceptual14.5k
A horizontal rectangular shelf is attached to a vertical wall on the left by a small circular hinge. A thin vertical wire extends from the right end of the shelf to a point on the ceiling directly above it. A downward arrow labeled 'Mg' originates from the center of the shelf.
A uniform shelf supported by a hinge and a vertical wire.
A uniform horizontal shelf of mass M is attached to a vertical wall by a hinge at its left end and is supported by a vertical wire at its right end. A student intends to use the rotational equilibrium condition \(\sum \tau = 0\) to determine the magnitude of the tension in the wire. The student knows the mass of the shelf but does not know the magnitude or direction of the force exerted by the hinge on the shelf. Which of the following describes the most useful location for the axis of rotation and provides a correct justification?

Log In to Continue

Accounts are free! Log in to try this question, see explanations, save progress, and more!

Similar Questions

Tools for a 5

The Quiz Lab library of AP Physics quizzes AP aligned mock tests to help you get a 5. With grading, adaptive explanations, and more. Find a Quiz Find, solve, and grade every AP FRQ ever. Find an FRQ Elite Physics Tutoring with Jason. Fast, 1 to 1 help on AP Physics 1. Understand weeks of complex concepts in just one session. Book a Session Learn AP Physics from scratch, quickly. This is the only course you'll need for the year. A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee. Explore the Course